Comments for 1971 white penny weighs 3.23 grams

It is likely that your white 1971D penny has been plated with something while in circulation. I would think that being plated would also attribute to the extra weight and thickness of the coin.

It is also possible that your coin has been a part of a chemistry experiment where you put a penny in a hot solution of sodium hydroxide and zinc dust. (Cited from: https://www.cointalk.com/threads/1971-d-silver-penny.229772/)

Aug 04, 2017

Regresar a 1971 penique blanco pesa 3.23 gramos. NEWby: Anonymous

Tu Lincoln cent esta en wrong planche

Jan 19, 2018

I found one todayNEWby: Brthstog

I just found a 1971 d that weighs 3.25 grams and is as a normal penny in color

Jan 27, 2018

Heavy Planchette?NEWby: Susan

I have a 1971D penny that feels thicker than all the other 1971 pennies that I have, and it weighs 3.29 grams. How can I tell if this is struck on a thick Manchester or possibly part of some experiment that added to its weight? It is a fairly nice coin.